气候变化领域集成服务门户(CCPortal): Interactive stratospheric aerosol models' response to different amounts and altitudes of SO(2 )injection during the 1991 Pinatubo eruption

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DOI	10.5194/acp-23-921-2023
	Interactive stratospheric aerosol models' response to different amounts and altitudes of SO(2 )injection during the 1991 Pinatubo eruption
	Quaglia, Ilaria; Timmreck, Claudia; Niemeier, Ulrike; Visioni, Daniele; Pitari, Giovanni; Brodowsky, Christina; Bruehl, Christoph; Dhomse, Sandip S.; Franke, Henning; Laakso, Anton; Mann, Graham W.; Rozanov, Eugene; Sukhodolov, Timofei
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	921
结束页码	948
卷号	23 期号:2 页码:28
英文摘要	A previous model intercomparison of the Tambora aerosol cloud has highlighted substantial differences among simulated volcanic aerosol properties in the pre-industrial stratosphere and has led to questions about the applicability of global aerosol models for large-magnitude explosive eruptions prior to the observational period. Here, we compare the evolution of the stratospheric aerosol cloud following the well-observed June 1991 Mt. Pinatubo eruption simulated with six interactive stratospheric aerosol microphysics models to a range of observational data sets.Our primary focus is on the uncertainties regarding initial SO2 emission following the Pinatubo eruption, as prescribed in the Historical Eruptions SO2 Emission Assessment experiments (HErSEA), in the framework of the Interactive Stratospheric Aerosol Model Intercomparison Project (ISA-MIP). Six global models with interactive aerosol microphysics took part in this study: ECHAM6-SALSA, EMAC, ECHAM5-HAM, SOCOL-AERv2, ULAQ-CCM, and UM-UKCA. Model simulations are performed by varying the SO2 injection amount (ranging between 5 and 10 Tg S) and the altitude of injection (between 18-25 km).The comparisons show that all models consistently demonstrate faster reduction from the peak in sulfate mass burden in the tropical stratosphere. Most models also show a stronger transport towards the extratropics in the Northern Hemisphere, at the expense of the observed tropical confinement, suggesting a much weaker subtropical barrier in all the models, which results in a shorter e-folding time compared to the observations. Furthermore, simulations in which more than 5 Tg S in the form of SO2 is injected show an initial overestimation of the sulfate burden in the tropics and, in some models, in the Northern Hemisphere and a large surface area density a few months after the eruption compared to the values measured in the tropics and the in situ measurements over Laramie. This draws attention to the importance of including processes such as the ash injection for the removal of the initial SO2 and aerosol lofting through local heating.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000917690000001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273280
作者单位	University of L'Aquila; Max Planck Society; Cornell University; Swiss Federal Institutes of Technology Domain; ETH Zurich; Max Planck Society; University of Leeds; Max Planck Society; Finnish Meteorological Institute; University of Leeds; Saint Petersburg State University
推荐引用方式 GB/T 7714	Quaglia, Ilaria,Timmreck, Claudia,Niemeier, Ulrike,et al. Interactive stratospheric aerosol models' response to different amounts and altitudes of SO(2 )injection during the 1991 Pinatubo eruption[J],2023,23(2):28.
APA	Quaglia, Ilaria.,Timmreck, Claudia.,Niemeier, Ulrike.,Visioni, Daniele.,Pitari, Giovanni.,...&Sukhodolov, Timofei.(2023).Interactive stratospheric aerosol models' response to different amounts and altitudes of SO(2 )injection during the 1991 Pinatubo eruption.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(2),28.
MLA	Quaglia, Ilaria,et al."Interactive stratospheric aerosol models' response to different amounts and altitudes of SO(2 )injection during the 1991 Pinatubo eruption".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.2(2023):28.